Question

John and Ted have a reputation for being late to events if John is late 20% of the time and Ted is late 40% of the time what is the probability that both John and Ted will be on time? show your work or explain how you got your answer.

Answer 1

P(John is late ) = 20/100 = 1/5
P(John is on time) = 1-1/5 = 4/5

P(Ted is late) = 40/100 = 2/5
P(Ted is on time ) = 1-2/5 = 3/5